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WorksheetsEngineering Materials Review
Total questions: 15
Worksheet time: 8mins
Which of these correctly describes a constraint?
a specific property of a material
a requirement that must be met
an advantage that benefits performance
a limit placed on the engineering process
In designing a new kind of pretzel snack, which of these might be a constraint for an engineer?
the snack must be low-calorie
the snack must contain at least 2g of fiber
the snack must be triangle-shaped
the snack cannot be made using tree nuts
In engineering, the term "criteria" refers to...
money that is allowed to be spent on a project
tests that are performed to measure performance
requirements that must be met by a design
positive reviews for a product
A new kind of sponge is being designed by a team of engineers. Which of these might be a criterion for this project?
There is a budget of $50,000 to spend
The project has a deadline of January 1, 2024
The sponge must hold at least three times its mass in water
Styrofoam cannot be used to make the sponge
Which of these is the first step in the engineering process?
promote the completed product with advertising
fully understand the problem that needs to be solved
obtain materials for creating the product or design
test the product in different types of conditions
True or False: Constraints always make the engineering process more difficult.
True
False
Which of these is considered a porous material?
aluminum foil
paper
stainless steel
hard plastic
True or False: When testing a design, engineers may add new criteria that were not originally stated.
True
False
The goal of engineering new materials is to create materials with properties that are ______ the original materials.
better than
the same as
unrelated to
Which of these properties would be considered useful for designing an athletic sneaker?
very low melting point
low flexibility
high flexibility
very high weight
Which of these properties would be problematic for a pair of work gloves?
high electrical conductivity
high durability
high melting point
high water resistance
Which of these is not an example of a way in which particles can be rearranged to create new materials?
heating or melting materials
cooling or freezing materials
mixing liquid materials together
painting materials a different color
True or False: Even for materials that have existed for many years, engineers may still try to find ways to create those materials more cheaply and easily.
True
False
True or False: Identifying criteria and constraints is often the last part of the engineering process.
True
False
Which of these is often a constraint for engineers?
money available to spend
time available to complete a project
materials available to work with
all of these
